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Step 3:

Thread the E-616PP Cover
Plate-Elevator Trim/WD-415 Elevator Trim Cable Anchor
Bracket Sub-Assemblies on to the CT Q-43 Elevator Trim
Cables. Adjust so that the elevator trim cable anchor
brackets are centered on the 7/16 threaded portion of the
elevator trim cable anchor points. Attach the cover plates
to the bottoms of the elevators.

Note: It was hard to turn the nut
with the plate attached as there is not enough clearance
without bending the cable down sharply. On the second one I
drilled the four pop rivets of and got the nut loose and it
is easy to turn on then. I can just pop rivet the plate back
on when I want. It is being held on with clecos

Run the trim servo
to the "Full Nose Up" position.
Temporarily attach the elevator trim cables to the
elevator trim tab horns using the hardware called-out in
Figures 2 and 3. Of the three washers called-out in Figure
2, one is t be installed between the cotter pin and the
outer surface of the clevis while the other two washers are
to be installed between the E-917/E-918 (left side) and
E-1017/E-1018 (right side) Elevator trim Horn and the inner
surface of the clevis; one washer on the outboard trim tab
horn and one washer on the inboard side of the elevator trim
tab horn.
Adjust the engagement of the jam nut and clevis onto
the trim cable so that the tabs are in the 35 degrees TAB
DOWN position as shown in Figure 3.
Note: I have spent quite a bit
of time adjusting things. The plans kind of just leave you
with seeing the NOSE UP trim requires the tabs to deflect 35
degrees. There is no mention of the degrees of nose down tab
travel. Somewhere in reading it seems that the mention of
the airplane to be nose heavy, especially when the flaps are
lowered and power pulled off, so there is more of a
requirement for more nose up trim than nose down. The cable
to the left tab has less throw than the right, hence it will
move the tab less distance. I hope all this reasoning is
right. It appears that both tabs are deflected 35 degrees
nose up, while the movement of the left tab stops at about
the trail position and the nose down trimming is done by the
right tab which deflects quite a ways. I hope this is right,
I am leaving it where it is and going to do more research.
Permanently attach the clevis to the trim tab horn
using the hardware called-out in Figures 2 and 3.
(This step my be delayed until the final assembly.) |